genus Araneus ge·nu·sa·raneus uncommon noun 1. a genus of orb-weaving spiders including common garden spiders and barn spiders SynonymsAraneagenus AraneaAraneusgenus Araneus Related words Broader terms arthropod genus Parts Argiopidae Part of barn spidergarden spider WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.